Long term space flight could be too overwhelming for the human body in its present form. There is space radiation, challenges with bone loss, and the body has evolved for 1G or one Earth Gravity Unit, not near weightlessness. Humans also seem to need food, and oxygen and all sorts of other things, that turns out to be a big challenge, even sending people close by to places like the Moon or Mars for instance. Okay so, let's talk shall we?
Not long, ago I was discussing all this with an acquaintance from a purely futuristic standpoint, even Sci Fi theory if you will. We postulated that we might take a human brain and put it into an exoskeleton, and it would fly the spacecraft. He suggested that perhaps the human brain ought to be part of the spacecraft instead? He also wonders if we might find handicapped people who are paralyzed and can't their current bodies anyway to volunteer for the mission at hand.
Not long, ago I was discussing all this with an acquaintance from a purely futuristic standpoint, even Sci Fi theory if you will. We postulated that we might take a human brain and put it into an exoskeleton, and it would fly the spacecraft. He suggested that perhaps the human brain ought to be part of the spacecraft instead? He also wonders if we might find handicapped people who are paralyzed and can't their current bodies anyway to volunteer for the mission at hand.